Picture this: it’s a busy weeknight, and the aroma of sizzling burgers fills the air, instantly lifting your spirits. That’s exactly the kind of comfort my Ultimate Bacon Double Smash Burgers with Baconnaise Sauce delivers! These delightful burgers feature crispy edges, juicy beef, and a heavenly blend of smoky baconnaise and caramelized onions that will have everyone gathered around the table, eager for a taste. With minimal prep time and the ability to customize toppings to your heart’s desire, this recipe transforms the classic burger into something truly gourmet. Whether you’re feeding a hungry family or hosting friends for a game night, these smash burgers are a quick and satisfying solution. Ready to elevate your burger game? Let’s get cooking!

Why Are Smash Burgers So Irresistible?
Crispy Edges make these smash burgers unlike any other. The searing process creates an irresistible crunch that complements juicy beef, ensuring every bite is a delight. Smoky Baconnaise adds a rich layer of flavor that elevates the entire experience. Quick and Easy to prepare, they fit perfectly into your busy weeknight routine. Customizable Toppings mean everyone can personalize their burger, keeping the whole family happy. Serve with fries or a fresh salad for a complete meal that’s sure to impress! If you’re looking for more flavor ideas, check out my Cajun Steak Sauce or explore variations with Zucchini Flatbread Herbs as a side!
Smash Burgers with Baconnaise Sauce Ingredients
For the Patties
• Ground Chuck – Look for an 80/20 meat-to-fat ratio for the juiciest, most flavorful burgers.
• Kosher Salt – Enhances the natural flavor of the beef; you can use table salt in a pinch, but reduce the amount.
• Black Pepper – Use freshly ground for a bolder taste.
For the Baconnaise Sauce
• Mayonnaise – Provides creaminess; Greek yogurt is a lighter alternative if you prefer.
• Cooked Bacon – Adds a smoky depth to the baconnaise; feel free to substitute with turkey bacon for a healthier option.
• Worcestershire Sauce – Brings a savory kick to the sauce; soy sauce can be used as a substitute if needed.
• Garlic Powder – Offers extra flavor; fresh minced garlic can be swapped in for a fresh taste.
For the Caramelized Onions
• Sweet Onions – Caramelized for a touch of sweetness that balances the savory flavors of the burger.
• Olive Oil – Essential for cooking the onions to perfection without burning.
For Assembly
• Brioche Buns – Their soft texture complements the smash burgers beautifully.
• American Cheese – Melts perfectly and adds creaminess to every bite.
• Lettuce & Tomato – Fresh toppings that provide crunch and refreshing flavor.
Feel free to play with the ingredients for the smash burgers with baconnaise sauce!
Step‑by‑Step Instructions for Smash Burgers with Baconnaise Sauce
Step 1: Caramelize the Onions
Begin by thinly slicing the sweet onions. In a skillet, heat a tablespoon of olive oil over medium-low heat and add the onions, seasoning them lightly with kosher salt and freshly ground black pepper. Stir frequently, cooking for about 30-45 minutes until they are wonderfully soft and golden brown, releasing a sweet aroma—this will enhance the flavors of your smash burgers.
Step 2: Prepare the Baconnaise Sauce
While the onions are caramelizing, mix together the baconnaise sauce. In a bowl, combine creamy mayonnaise, finely chopped cooked bacon, a splash of Worcestershire sauce, and a sprinkle of garlic powder. Stir until thoroughly blended and set aside. This smoky baconnaise sauce will add a delicious twist to your smash burgers once they are assembled.
Step 3: Form the Burger Patties
Next, divide the ground chuck into eight equal balls, roughly the size of a golf ball. Preheat your griddle or cast-iron skillet over medium-high heat until it’s sizzling hot—this is crucial for achieving the crispy edges that make smash burgers irresistible. Once ready, place the balls onto the hot surface, using a spatula to smash each ball down firmly, and sprinkle with salt and pepper.
Step 4: Cook the Patties
Allow the patties to cook for about 3-4 minutes on the first side. You’ll know they’re ready to flip when the edges look crispy and brown. Carefully flip them and immediately add a slice of American cheese on top of each patty, then add the caramelized onions. Cook for another 1-2 minutes until the cheese is melted and bubbly, creating a mouthwatering layer of flavor.
Step 5: Assemble the Burgers
Now it’s time to build the smash burgers! Start by spreading a generous layer of the smoky baconnaise sauce on the bottom half of each toasted brioche bun. Layer with a piece of lettuce, followed by the cheesy, juicy burger patties, and top with fresh slices of tomato. Finally, place the top bun and get ready to savor the deliciousness of your smash burgers with baconnaise sauce!

How to Store and Freeze Smash Burgers with Baconnaise Sauce
- Fridge: Store leftover cooked patties in an airtight container for up to 2 days. Reheat in a skillet over medium heat until warmed through to restore their juiciness.
- Freezer: Uncooked patties can be frozen individually on a baking sheet, then transferred to a freezer bag for up to 3 months. Thaw overnight in the fridge before cooking.
- Baconnaise Sauce: Keep any leftover baconnaise sauce in the fridge in a sealed container for up to 1 week. It’s perfect for dipping or spreading on sandwiches!
- Reheating: To reheat frozen patties, bake them in a preheated oven at 350°F (175°C) for approximately 10-15 minutes, or until fully heated. Enjoy your smash burgers with baconnaise sauce freshly revived!
Expert Tips for Smash Burgers
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Choose the Right Meat: Use ground chuck with an 80/20 fat ratio for the juiciest smash burgers with baconnaise sauce; avoid leaner options that can dry out.
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Smash with Confidence: Make sure to firmly smash the patties; this creates those desirable crispy edges that are key to a great burger.
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Don’t Overcrowd the Grill: Cooking one or two at a time lets the patties develop a nice crust. Overcrowding can lead to steaming instead of searing.
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Let It Rest: Allow burgers to rest for a couple of minutes after cooking. This helps the flavors meld and makes every bite even more delicious.
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Customize Wisely: Feel free to experiment with toppings and sauces; just remember that the balance of flavors is crucial in enhancing your smash burgers with baconnaise sauce.
Make Ahead Options
These Ultimate Bacon Double Smash Burgers with Baconnaise Sauce are perfect for meal prep enthusiasts! You can caramelize the onions and prepare the baconnaise sauce up to 3 days in advance, keeping them refrigerated in airtight containers. To maintain quality, store the onions separately to prevent them from becoming soggy. When you’re ready to enjoy your burgers, simply form the patties and cook them fresh; it’ll only take about 10 minutes to get that crispy exterior you love. Remember, assembling the burgers just before serving ensures that the brioche buns stay soft and delightful—your family will be savoring every bite as if you just made them on the spot!
Smash Burgers with Baconnaise Sauce Variations
Feel free to explore these fun customizations that will take your smash burgers to the next level of deliciousness!
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Greek Yogurt: Replace mayonnaise with Greek yogurt in the baconnaise sauce for a lighter twist that maintains creaminess. It adds a refreshing tang, perfect for summer.
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Turkey Bacon: Use turkey bacon instead of regular bacon for a healthier option. This swap still delivers that beloved smoky flavor while reducing fat content.
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Avocado Upgrade: Slice up some ripe avocado to add creaminess and a burst of fresh flavor. It complements the crispy edges beautifully!
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Cheese Variety: Instead of American cheese, try pepper jack for a spicy kick or sharp cheddar for a richer taste. Each brings its unique flavor profile!
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Heat it Up: Add a splash of hot sauce to your baconnaise for a fiery kick that will thrill spice lovers. Just a little will go a long way in elevating the flavor.
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Pickled Toppings: Top your burgers with pickled jalapeños or onions for a zesty crunch. They add a pop of flavor that perfectly balances the richness of the baconnaise.
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Herb-Infused Sauce: Mix in some fresh herbs like dill or chives into your baconnaise. This fresh infusion brightens up the sauce, making every bite a delightful surprise.
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Sweet and Savory: Try adding a slice of grilled pineapple as a topping for a deliciously sweet contrast against the savory burger and smokiness of the baconnaise sauce. A tropical twist for sure!
Don’t forget, if you’re looking for more tasty sauces, consider trying my Beef Kofta Sauce or the unique flavors of Garlic Butter Steak to pair with your tasty burgers!
What to Serve with Ultimate Bacon Double Smash Burgers with Baconnaise Sauce
Transform your burger night with these delightful sides that perfectly complement the rich flavors of your smash burgers!
- Crispy French Fries: The golden crunch of hot fries pairs wonderfully with juicy burgers. Dip them in extra baconnaise for a decadent treat!
- Creamy Coleslaw: This cool, crunchy slaw adds a refreshing contrast to the richness of the burgers, balancing flavors beautifully with every bite.
- Roasted Sweet Potatoes: Their natural sweetness and tender texture harmonize perfectly with the savory notes of the burgers, creating a well-rounded meal.
- Garlic Butter Corn on the Cob: Smoky and buttery corn enhances the outdoor grilling experience, making every BBQ feel like a festive gathering.
- Garden Salad: A fresh salad topped with vibrant vegetables adds a crispness that brightens your plate while keeping things light and refreshing.
- Craft Beer: Enjoy your burgers with a cold craft beer; its hoppy flavor cuts through the richness of the bacon and cheese for an ultimate pairing experience.
- Chocolate Milkshake: Indulge your sweet tooth with a creamy milkshake. The contrasting flavors of chocolate and savory burgers will delight your taste buds!

Smash Burgers with Baconnaise Sauce Recipe FAQs
What type of ground meat is best for smash burgers?
Absolutely! For the juiciest smash burgers with baconnaise sauce, I recommend using ground chuck with an 80/20 meat-to-fat ratio. This fat content ensures that your burgers remain moist and flavorful as they cook. Leaner cuts can dry out, so steer clear of anything lower than 80% fat.
How should I store leftover smash burgers?
Very important! Leftover cooked patties can be stored in an airtight container in the fridge for up to 2 days. To reheat, place them in a skillet over medium heat for a few minutes until warmed through, which helps restore their juiciness. If you’re looking to keep them longer, you can freeze uncooked patties for up to 3 months—just remember to thaw them overnight in the fridge before cooking!
Can I freeze the baconnaise sauce?
Of course! If you have leftovers of the baconnaise sauce, simply store it in a sealed container in the fridge for up to 1 week. Freezing it is trickier because of the mayonnaise base, but if needed, you can freeze it in ice cube trays for future use in dips or spreads—just thaw what you need for cooking!
What if my onions aren’t caramelizing properly?
No worries! If your onions aren’t caramelizing as expected, ensure your heat is on medium-low and that you’re stirring them regularly to prevent burning. The process usually takes about 30-45 minutes. If they’re browning too quickly without becoming soft, lower the heat a bit. Adding a sprinkle of sugar can also help enhance the caramelization process, giving you that perfect sweetness.
How can I make this recipe gluten-free?
Certainly! To make smash burgers with baconnaise sauce gluten-free, simply use gluten-free brioche buns or any gluten-free bread substitute. Just be sure to double-check the labels on your condiments, like the Worcestershire sauce, as some brands contain gluten. For a fun twist, try serving the patties wrapped in large lettuce leaves instead!
Are there vegan options for this recipe?
Absolutely! To create a delicious vegan version of smash burgers, swap the ground chuck for a plant-based meat substitute, such as lentils or a store-bought vegan burger patty. For the baconnaise sauce, use vegan mayonnaise and replace the bacon with a smoky vegan alternative or leave it out altogether. Enjoy experimenting with toppings like avocado, sautéed mushrooms, or vegan cheese!

Mouthwatering Smash Burgers with Baconnaise Sauce Recipe
Ingredients
Equipment
Method
- Begin by thinly slicing the sweet onions. In a skillet, heat a tablespoon of olive oil over medium-low heat and add the onions, seasoning them lightly with kosher salt and freshly ground black pepper. Stir frequently, cooking for about 30-45 minutes until they are wonderfully soft and golden brown.
- While the onions are caramelizing, mix together the baconnaise sauce by combining mayonnaise, finely chopped cooked bacon, Worcestershire sauce, and garlic powder in a bowl. Stir until thoroughly blended.
- Divide the ground chuck into eight equal balls, roughly the size of a golf ball. Preheat your griddle or cast-iron skillet over medium-high heat until it's sizzling hot.
- Place the balls onto the hot surface, using a spatula to smash each ball down firmly, and sprinkle with salt and pepper. Cook for about 3-4 minutes until the edges look crispy.
- Carefully flip the patties, and immediately add a slice of American cheese on top of each patty, then add the caramelized onions. Cook for another 1-2 minutes until the cheese is melted and bubbly.
- Spread a generous layer of the smoky baconnaise sauce on the bottom half of each toasted brioche bun. Layer with a piece of lettuce, followed by the cheesy, juicy burger patties, and top with fresh slices of tomato. Place the top bun to complete the burger.

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